Sylar might need to see the powers activated before he can pinpoint where/how exactly in the brain it's being triggered. That's why he cut Jackie's head open slowly; he was waiting for the regenerative powers to activate.
One of the previous victims was frozen - He probably activated his ice powers to defend himself and then Sylar scalped him.
Sylar didn't notice Hiro because he wasn't actively using his powers. Charlie, OTOH, was using her super-memory all-day long while Sylar watched.
Later, when he was fleeing and encountered Eden, he waited for her to make the first move with her power... unfortunately for him, he didn't get to do anything after that.
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Date: 2006-11-29 12:27 am (UTC)One of the previous victims was frozen - He probably activated his ice powers to defend himself and then Sylar scalped him.
Sylar didn't notice Hiro because he wasn't actively using his powers. Charlie, OTOH, was using her super-memory all-day long while Sylar watched.
Later, when he was fleeing and encountered Eden, he waited for her to make the first move with her power... unfortunately for him, he didn't get to do anything after that.